On 08/14/2015 02:10 PM, Peter Geoghegan wrote:
> On Fri, Aug 14, 2015 at 10:28 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Yeah. The painful issues you're going to face are not that. They are
>> memory management (C++ "new" does not talk to palloc or vice versa)
>> and error handling ("throw" does not interoperate with PG_TRY()).
> It's worse than that. Any use of longjmp() will cause undefined
> behavior in C++. That's because each C++ object's destructor will not
> be called (possibly other reasons, too).
>
> I suggest looking at the PL/V8 code for an example of how to make C++
> code work as a Postgres extension. IIRC they've made specific
> trade-offs that might be useful for Jacques' use case too.
>
Yeah, although be aware that PLv8 still has odd buggy behaviours that I
am not sure are not related to some C/C++ impedance mismatch.
cheers
andrew